ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,773, issued on March 24, was assigned to NXP B.V. (Eindhoven, Netherlands).

"Using approximate membership query filters for efficient control flow integrity protection" was invented by Jan Hoogerbrugge (Helmond, Netherlands) and Marcel Medwed (Graz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes fetching, at a program counter value, an instruction of a basic block of code; decoding the instruction; updating a checksum value with a checksum of the instruction; and determining whether a tuple of the program counter value and the checksum value is in an approximate membership query filter (AMQ-filter)."

The patent was filed ...